Dear MyCERT,

About 200 PCs within our network experiences automatic shutdown, once they are connected to the network. The automatic shutdown shows a small window with message saying that in 60 seconds time Windows wil shutdown. A copy of the screenshot of the message as appeared on the PCs are attached for your analysis.

FYI, the affected PCs within our network are running on Windows X Service Pack 1 and all PCs within our network are equipped with host based Antivirus softwares.

We would like to know if the above symptoms indicates any worm infection to our PCs and if yes, pls advise us accordingly to contain the problem and to recover from the problem.

We appreciate your prompt response to our problem.

Thanks